Film for cards or passports, inlet sheets, cards and passports
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- MITSUBISHI CHEM CORP
- Filing Date
- 2024-11-28
- Publication Date
- 2026-06-09
AI Technical Summary
【0010】 本発明によれば、ICチップなどのインレットにおいて、薄くて比較的少ない充填材の添加量であっても、隠蔽性が良好な、カード又はパスポート用フィルムを提供できる。
Smart Images

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Abstract
Claims
1. A card or passport film having a thickness of 10 to 100 μm and a filler content of 10 to 50% by mass, comprising a polycarbonate resin (A) having a structural unit (A1) derived from a dihydroxy compound having a portion represented by the following formula (1) in part of its structure, and a filler. 【Chemistry 1】 However, the part represented by formula (1) above is -CH 2 Except when it is part of -O-H.
2. The card or passport film according to claim 1, wherein the rate of increase in opacity relative to the opacity of the following standard film is 10% or more. (Reference film) A film comprising a polycarbonate resin having the same thickness as the aforementioned card or passport film and a bisphenol skeleton, and a filler, wherein the filler and its content are equivalent to those of the aforementioned card or passport film.
3. The card or passport film according to claim 1, further containing an impact-resistant agent, wherein the content of the impact-resistant agent is 1% by mass or more and 30% by mass or less.
4. The material comprises an intermediate layer containing the polycarbonate resin (A) and the filler, and two surface layers provided on both sides of the intermediate layer. The card or passport film according to claim 3, wherein each of the two surface layers contains the polycarbonate resin (A), the filler, and the impact resistance improver.
5. The card or passport film according to claim 1, wherein the refractive index of the filler is 2 or more.
6. The card or passport film according to claim 1, wherein the filler contains titanium oxide.
7. A card or passport film according to claim 1, used as a core sheet.
8. A card or passport film according to claim 1, having an opening.
9. An inlet sheet comprising the card or passport film described in claim 1.
10. A card comprising a card or passport film according to any one of claims 1 to 8, or an inlet sheet according to claim 9.
11. A passport comprising a card or passport film according to any one of claims 1 to 8, or an inlet sheet according to claim 9.